Flue-draft door



May l5, 1928.

T. OLINGER FLUE DRAFT DOOR Filed July ll, 1927 Patented May l5, 1928.

Unirse STATES n i 1,669,533 PATENT OFFICE..

THOMAS OLINGER, OF HOLLAND, MICHIGAN, ASSIGNOR TOr FEDERAL MANUFACT'UR--ING GOMPAN-Y, OF HOLLAND, MICHIGAN, A CORPORATION. OF MICHIGAN.

ELITE-DRAFT DOOR.

Application filed July 11, 1927. Serial No. 204,762,

This invention relates to a draft door construction particularlydesigned for use as a check draft on the smoke pipes'of furnaces, stovesand' the like. It is a. primary object and purpose lof the presentinvention to provide a very simple and economically constructed draftdoorand mountingtherefor which maybe applied to smoke. pipes whether inhorizontaler vertical position, the door being capable of readyapplication to the part on which it is mounted for pivotal movement atdifferent points so that the door may be swungv about a horizontal axiswhether mounted' on ya vertical or a horizontal smoke pipe. v Theinvention consists in novel constructions and arrangements andcombinations of parts for simply, effectively and economically attainingthe ends stated.

An understanding of the construction of a preferred embodiment of theinvention may be had from the following description taken in connectionwith the `accompanying drawing, in which,

Fig. 1 is a fragmentary elevation illusn trating the draft door appliedto a horizontally located smoke pipe.

Fig, 2 is a similar view showing the same applied to a vertical pipe.

Fig. 3 is a perspective view of the supporting fixture for the draftdoor and which is permanently mounted on the smoke pipe.

Fig. i is a perspective View of the pivotally mounted draft door withthe interposed connecting bracket therefor which is adjustably mountedon the fixture shown in Fig. 3 at dierent positions thereof, and

Fig. 5 is a fragmentary vertical section through the upper part of thedraft door construction showing ther pivotal mounting of said door andthe manner in which it is gonnected with the supporting fixture thereor.

Like reference characters refer to like parts in the different figuresof the drawing.

n the construction shown, a supporting xture, on which the draft door isto be mounted, is provided designed for attachment to a furnace or stovesmoke pipe. The fixture comprises a circular flange or ring 1 of sheetmetal shaped to lit the curvature of the pipe on which it is placed. Acylindrical member 2 extends from the ring 1 and at its free end isformed with an inwardly bent annular lip 3. The cylinder 2 has twospaced apart openings 4 cut therein at one `side and, in `addition hasanother pair of openings 5y like the openings 4 cut'there throughsubstantially at right angles tothe vopenings a. It isof course evidentthat other pairs of `openings may be made inthe -cylinder 2 at anydesired points.v

The draft door 6y is made fromy a plate of sheet metal and' is ofsubstantially circular form and has an annular inturned lip or flange 7around it to fit over the. lip 3 on the 65 cylindrical member 2. Thedoor 6 at one side is equipped with two spaced apart upwardly extendingears 8 of the formV shown.

A bracket made from a single piece of sheet metal is provided, includinga flange 9 70 curvedv to fit against a side ofthe cylindrical member 2and at each end is for-ined` with a downwardly extending ear 10. Thedistance between the ears 10 is such that the saine may pass freelythrough either of the pairs of openings 4; or 5.` A -flange 11 is bentupwardly substantially at right angles to the somewhat curved flange 9,in which two spaced apart openings 12 are made and through which theears 8 of the draft door 6 80 may pass` for pivotally mounting the dooion the bracket.

en the supporting fixture shown in Fig. 3 is attached to a horizontallylocated pipe, as 13 in Fig. 1, the pairs of openings 85 lie at the upperside of the cylindrical. member 2 and the bracket described may beattached by inserting ears 10 through the ppenings e, clinching the sameafter passing through said openings as shown in Fig. 5. When thelfixture is attached to a verticalk pipe, as 11i .in Fig- 2, the otherpair of openings 5 in the cylindrical, member 2, are at the upper sideof member 2 and the bracket may be attached by inserting the ears 10 95through said openings. It is evident that irrespective of whether thesmoke pipe is horizont-al or vertical, a pair of openings 4 or 5 in thepart 2 will be located at the upper side thereof and that the door maybe attached so that it will swing about a horizontal axis so that it maybe opened or closed by means of the usual draft chain, indicated at 15.

The invention described is very practical 102iy and is universal in itsapplication to smoke pipes of furnaces, stoves or the like, beingapplicable to such pipes whether in vertical or horizontal position. Theconstruction is very economical to make and may' be made 110 inginanyway ,from the invention Which is `defined inthe appended claims, theinvention comprehending all forms of structures coming within the scopeof said claims. I claim: v

l. A device of the class described compriszing, `a supportingV 'fixturehaving a flange shaped to fit against a cylindrical-smoke pipe and a`cylindrical `member extending `from `said flange having an open outerend,

said'cylindrical member havingV a -plurality of openings through thesides thereof, a bracket, means for attaching said bracket to vsaidcylindrical member' ata plurality of different positionsl defined bysaid openings therethrough, and a draft door pivotally mounted on saidbracket. l Y v 2. A.l device of theclass described, come prising, asupporting fixture having ar `flange shaped t0 fit against theouter sideof a smoke pipe `and including a cylindrical memberk extendingfrom saidflange having to the first flange, and a draft `door pivotally mountedon the second flange and shaped to close the `outer end of thecylindrical member. f

3. A device 'of'theclass described comprising, a supporting fixturehaving'` a flange `shaped to fit against the Outerside of a smoke ypipeand fincluding a `cylindrical memberv extending from said flange havinganiopen outer end, said member having a plurality of pairs of openingstherethrough, a bracket formed with a flange to fit against the outerside of said cylindrical member, i ears on `the bracket to extendthroughany pairf of said openings in said cylindrical member and a draft doorpivotally mounted on `said bracket and shaped to close the I outer endof the cylindrical member.

THOMAS OLINGER y `In testimony whereof I affix my signature. i an openouterend, said member having a y i

